| Specifications Tu 1461-037-50254094-2008 Cast Iron High Strength Pressure Pipes
Трубы чугунные напорные высокопрочные. Технические условия. |
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GOST 17.1.3.07-82Environmental protection. Water. Rules for … |
GOST 12820-80Flat steel welded flanges for PN from 0.1 to … |
GOST 21.101-97Construction Design and Estimate Documentation. … |